Cigarette lighter



FIG. 1 is a perspective view of a cigarette lighter embodying my new design;

FIG. 2 is a top view;

FIG. 3 is a front elevational view;

FIG. 4 is a side elevational view;

FIG. 5 is a rear elevational view; and

FIG. 6 is a botttom view. 

The ornamental design for a cigarette lighter, as shown. 